Different ways of expressing colors

There are several ways in which the color of nature can be represented by digitization. One is RGB, one is CMYK, in which RGB is the light-emitting blending mode (addition mode), CMYK is the print reflective mode to express (subtraction mode).

RGB Total 24 bits, then can express the color has 1.66 million kinds, covers all color which the human eye can distinguish, also is called True Color

CMYK respectively represents cyan, magenta, yellow, black, by the four kinds of pigments through different concentrations of harmony. In inkjet printers, for example, each print point, depending on its color,

Each of the four colors will be sprayed into one point according to different concentrations. In practice, if the concentration of a color is very low, such as the C color is very low, then the design simply reduce the point of C is 0,

This is the advantage: on the one hand, color is not out of tune, on the other hand to reduce a process, improve yield.

In RGB, if RGB is equal, Gray is formed. Grayscale expresses color information in addition to hue. In RGB channel mode, you will be able to see the distribution of RGB monochrome across the entire screen. The smaller the gray K percentage, the more white it is,

The larger the K percentage, the more black it tends to be. Correspondingly, the more white areas you see in single-channel mode, the heavier the single.

Conversely, in CMYK single-channel mode, the darker the color, the greater the pigment concentration.

Hue: Hue denotes any of the colors of a circle in which red orange-yellow green-blue purple is enclosed.

For more information:

Http://zh.wikipedia.org/wiki/HSL%E5%92%8CHSV%E8%89%B2%E5%BD%A9%E7%A9%BA%E9%97%B4

Different ways of expressing colors